We don't get rewarded for not breaking the law IRL (other than not being punished, of course), why should we in a game?
The real world doesn't reward you for killing a criminal so why should the game? The real world doesn't reward you for discovering Paris, so why should R2R reward you for something mapped a million times already? The real world doesn't reward soldiers for killing invaders, so why should Hydras drop bonds?
In real life money is finite, in the game it's just a number the devs type in, so in real life it's hard to financially reward good behaviour whereas in game it has no cost. Both the real world police and the game would benefit from rewarding good behaviour, but only the game can afford to do it.